
import java.util.*;
public class ArraysUnit {
    public String paixu() {
        int a[] = {9,8,7,6,5,4,3,2,1} ;
        int b[]={6,5,4,3,2,1};
        String s="";
        Arrays.sort(a);//数组的排序方法
        for(int i=0;i<=8;i++){
            if (i<=7)
                s=s+a[i]+" ";
            else
                s=s+a[i];
        }
        return s;
    }
}
